Tuesday, April 12, 2011

April 10 [Day 36] (Bill Wilson) The temperature was -5C at 0700 but rose to 8C at 1600 and 1700 before falling to 5C at the end of the day. Ground winds were S-SW 2-10, gusting to 20-40 km/h in the late morning and much of the afternoon but diminishing after 1930. Ridge winds were SW and occasionally WSW, moderate in the morning but strong in the afternoon with gusts to 130 km/h. Initial cloud cover was 30% cumulus and cirrus, but was 70-100% cumulus and altostratus for the rest of the day, and the western route was 10% obscured in the morning and up to 20% in the late afternoon with the eastern route clear all day. There was a fairly steady movement of raptors between a Golden Eagle 0927 and 2 Golden Eagles at 2018 peaking at 8 birds between 1300 and 1400 and 17 birds from 1400 to 1500. The flight of 41 migrants comprised 5 Bald Eagles (2a, 1sa, 1j, 1u), 1 juvenile Sharp-shinned Hawk, 1 Cooper's Hawk of unknown age, 2 adult Northern Goshawks and 32 Golden Eagles (13a, 4sa, 9j and 6u). Yesterday's Northern Shrike was still present and other birds included 2 American Crows and 41 unidentified white-headed gulls flying high to the NE.


Since April 4 “Elaine” has moved 50 km to the north, then 55km to the NNE and now appears to be north of the North Fork of the Chandalar River on the southern flank of the Philip Smith Mountains of the Brooks Range. It is likely that she has now reached her summer range.

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